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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 80.2
edited by Xiaoling
on 2022/06/10 10:19
Change comment: There is no comment for this version
To version 82.9
edited by Xiaoling
on 2022/06/20 11:19
Change comment: There is no comment for this version

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... ... @@ -19,6 +19,8 @@
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 +
23 +
22 22  The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
23 23  )))
24 24  
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163 163  )))
164 164  * (((
165 165  Packet engine up to 256 bytes with CRC.
166 -)))
167 167  
168 168  
169 169  
171 +
172 +)))
170 170  
171 171  == 1.3 Features ==
172 172  
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208 208  
209 209  
210 210  
211 -
212 212  = 2. Power ON Device =
213 213  
214 214  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
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289 289  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
290 290  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
291 291  
294 +
295 +
296 +
292 292  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
293 293  
294 294  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
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327 327  * [1] RO1 relay channel is close and the RO1 LED is ON.
328 328  * [0] RO2 relay channel is open and RO2 LED is OFF;
329 329  
335 +
330 330  **LT22222-L:**
331 331  
332 332  * [1] DI2 channel is high input and DI2 LED is ON;
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342 342  ** DO1 is high in case there is load between DO1 and V+.
343 343  ** DO1 LED is off in both case
344 344  
351 +
352 +
353 +
345 345  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
346 346  
347 347  
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779 779  
780 780  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
781 781  
782 -
783 783  === 3.4.1 Common Commands ===
784 784  
785 785  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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2011 2011  )))
2012 2012  
2013 2013  (((
2014 -
2022 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2015 2015  
2024 +If the device is not shut down, but directly powered off.
2025 +
2026 +It will default that this is a power-off state.
2027 +
2028 +In modes 2 to 5, DO RO status and pulse count are saved in flash.
2029 +
2030 +After restart, the status before power failure will be read from flash.
2031 +
2016 2016  = 6. Trouble Shooting =
2017 2017  )))
2018 2018